How do I associate a filetype to open with a self developed application?












1














In .NET/WinForms/C# I wrote a small program for "viewing" PDF files.
It just opens a real PDF viewer and does some more things (not important for the following problem).



However, under Windows 10 I cannot set my program as the default for opening PDF files.

If I open a PDF file via "Open with..." and select my program and activate the option "Always open with...", next time I open a PDF Windows will use the default PDF viewer again.

In the case that I try to set the default program via the default apps settings, Windows will not even accept my program as a default for PDF files. It only shows other viewers like Acrobat or Chrome.



How can I set my self-coded program to be the default viewer for PDF files?










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  • Some similar issues. Try this answer.
    – Biswapriyo
    Dec 5 at 14:32
















1














In .NET/WinForms/C# I wrote a small program for "viewing" PDF files.
It just opens a real PDF viewer and does some more things (not important for the following problem).



However, under Windows 10 I cannot set my program as the default for opening PDF files.

If I open a PDF file via "Open with..." and select my program and activate the option "Always open with...", next time I open a PDF Windows will use the default PDF viewer again.

In the case that I try to set the default program via the default apps settings, Windows will not even accept my program as a default for PDF files. It only shows other viewers like Acrobat or Chrome.



How can I set my self-coded program to be the default viewer for PDF files?










share|improve this question
























  • Some similar issues. Try this answer.
    – Biswapriyo
    Dec 5 at 14:32














1












1








1







In .NET/WinForms/C# I wrote a small program for "viewing" PDF files.
It just opens a real PDF viewer and does some more things (not important for the following problem).



However, under Windows 10 I cannot set my program as the default for opening PDF files.

If I open a PDF file via "Open with..." and select my program and activate the option "Always open with...", next time I open a PDF Windows will use the default PDF viewer again.

In the case that I try to set the default program via the default apps settings, Windows will not even accept my program as a default for PDF files. It only shows other viewers like Acrobat or Chrome.



How can I set my self-coded program to be the default viewer for PDF files?










share|improve this question















In .NET/WinForms/C# I wrote a small program for "viewing" PDF files.
It just opens a real PDF viewer and does some more things (not important for the following problem).



However, under Windows 10 I cannot set my program as the default for opening PDF files.

If I open a PDF file via "Open with..." and select my program and activate the option "Always open with...", next time I open a PDF Windows will use the default PDF viewer again.

In the case that I try to set the default program via the default apps settings, Windows will not even accept my program as a default for PDF files. It only shows other viewers like Acrobat or Chrome.



How can I set my self-coded program to be the default viewer for PDF files?







windows-10 pdf file-association code






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edited Dec 5 at 15:04









Saaru Lindestøkke

66521032




66521032










asked Dec 5 at 14:01









SedoAdmin

61




61












  • Some similar issues. Try this answer.
    – Biswapriyo
    Dec 5 at 14:32


















  • Some similar issues. Try this answer.
    – Biswapriyo
    Dec 5 at 14:32
















Some similar issues. Try this answer.
– Biswapriyo
Dec 5 at 14:32




Some similar issues. Try this answer.
– Biswapriyo
Dec 5 at 14:32










1 Answer
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I believe a combination of assoc and ftype will do the trick. You run the assoc command to associate an extension to a given ftype. You run the ftype command to specify what program to run when the given ftype is accessed.



Run



assoc /?


and



ftype /?


to get more info. If they work, I think you can put those commands in your login environment.



Hope this helps.






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    I believe a combination of assoc and ftype will do the trick. You run the assoc command to associate an extension to a given ftype. You run the ftype command to specify what program to run when the given ftype is accessed.



    Run



    assoc /?


    and



    ftype /?


    to get more info. If they work, I think you can put those commands in your login environment.



    Hope this helps.






    share|improve this answer


























      0














      I believe a combination of assoc and ftype will do the trick. You run the assoc command to associate an extension to a given ftype. You run the ftype command to specify what program to run when the given ftype is accessed.



      Run



      assoc /?


      and



      ftype /?


      to get more info. If they work, I think you can put those commands in your login environment.



      Hope this helps.






      share|improve this answer
























        0












        0








        0






        I believe a combination of assoc and ftype will do the trick. You run the assoc command to associate an extension to a given ftype. You run the ftype command to specify what program to run when the given ftype is accessed.



        Run



        assoc /?


        and



        ftype /?


        to get more info. If they work, I think you can put those commands in your login environment.



        Hope this helps.






        share|improve this answer












        I believe a combination of assoc and ftype will do the trick. You run the assoc command to associate an extension to a given ftype. You run the ftype command to specify what program to run when the given ftype is accessed.



        Run



        assoc /?


        and



        ftype /?


        to get more info. If they work, I think you can put those commands in your login environment.



        Hope this helps.







        share|improve this answer












        share|improve this answer



        share|improve this answer










        answered Dec 5 at 15:19









        Lewis M

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